static lldb::Format GetItemFormatForFormat (lldb::Format format, CompilerType element_type) { switch (format) { case lldb::eFormatVectorOfChar: return lldb::eFormatChar; case lldb::eFormatVectorOfFloat32: case lldb::eFormatVectorOfFloat64: return lldb::eFormatFloat; case lldb::eFormatVectorOfSInt16: case lldb::eFormatVectorOfSInt32: case lldb::eFormatVectorOfSInt64: case lldb::eFormatVectorOfSInt8: return lldb::eFormatDecimal; case lldb::eFormatVectorOfUInt128: case lldb::eFormatVectorOfUInt16: case lldb::eFormatVectorOfUInt32: case lldb::eFormatVectorOfUInt64: case lldb::eFormatVectorOfUInt8: return lldb::eFormatUnsigned; case lldb::eFormatBinary: case lldb::eFormatComplexInteger: case lldb::eFormatDecimal: case lldb::eFormatEnum: case lldb::eFormatInstruction: case lldb::eFormatOSType: case lldb::eFormatVoid: return eFormatHex; case lldb::eFormatDefault: { // special case the (default, char) combination to actually display as an integer value // most often, you won't want to see the ASCII characters... (and if you do, eFormatChar is a keystroke away) bool is_char = element_type.IsCharType(); bool is_signed = false; element_type.IsIntegerType(is_signed); return is_char ? (is_signed ? lldb::eFormatDecimal : eFormatHex) : format; } break; default: return format; } }
ValueObjectSP ABISysV_mips::GetReturnValueObjectImpl (Thread &thread, CompilerType &return_clang_type) const { ValueObjectSP return_valobj_sp; Value value; if (!return_clang_type) return return_valobj_sp; ExecutionContext exe_ctx (thread.shared_from_this()); if (exe_ctx.GetTargetPtr() == NULL || exe_ctx.GetProcessPtr() == NULL) return return_valobj_sp; value.SetCompilerType(return_clang_type); RegisterContext *reg_ctx = thread.GetRegisterContext().get(); if (!reg_ctx) return return_valobj_sp; bool is_signed = false; bool is_complex = false; uint32_t count = 0; // In MIPS register "r2" (v0) holds the integer function return values const RegisterInfo *r2_reg_info = reg_ctx->GetRegisterInfoByName("r2", 0); size_t bit_width = return_clang_type.GetBitSize(&thread); if (return_clang_type.IsIntegerType (is_signed)) { switch (bit_width) { default: return return_valobj_sp; case 64: { const RegisterInfo *r3_reg_info = reg_ctx->GetRegisterInfoByName("r3", 0); uint64_t raw_value; raw_value = reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT32_MAX; raw_value |= ((uint64_t)(reg_ctx->ReadRegisterAsUnsigned(r3_reg_info, 0) & UINT32_MAX)) << 32; if (is_signed) value.GetScalar() = (int64_t)raw_value; else value.GetScalar() = (uint64_t)raw_value; } break; case 32: if (is_signed) value.GetScalar() = (int32_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT32_MAX); else value.GetScalar() = (uint32_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT32_MAX); break; case 16: if (is_signed) value.GetScalar() = (int16_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT16_MAX); else value.GetScalar() = (uint16_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT16_MAX); break; case 8: if (is_signed) value.GetScalar() = (int8_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT8_MAX); else value.GetScalar() = (uint8_t)(reg_ctx->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT8_MAX); break; } } else if (return_clang_type.IsPointerType ()) { uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(r2_reg_info, 0) & UINT32_MAX; value.GetScalar() = ptr; } else if (return_clang_type.IsAggregateType ()) { // Structure/Vector is always passed in memory and pointer to that memory is passed in r2. uint64_t mem_address = reg_ctx->ReadRegisterAsUnsigned(reg_ctx->GetRegisterInfoByName("r2", 0), 0); // We have got the address. Create a memory object out of it return_valobj_sp = ValueObjectMemory::Create (&thread, "", Address (mem_address, NULL), return_clang_type); return return_valobj_sp; } else if (return_clang_type.IsFloatingPointType (count, is_complex)) { const RegisterInfo *f0_info = reg_ctx->GetRegisterInfoByName("f0", 0); const RegisterInfo *f1_info = reg_ctx->GetRegisterInfoByName("f1", 0); if (count == 1 && !is_complex) { switch (bit_width) { default: return return_valobj_sp; case 64: { static_assert(sizeof(double) == sizeof(uint64_t), ""); uint64_t raw_value; raw_value = reg_ctx->ReadRegisterAsUnsigned(f0_info, 0) & UINT32_MAX; raw_value |= ((uint64_t)(reg_ctx->ReadRegisterAsUnsigned(f1_info, 0) & UINT32_MAX)) << 32; value.GetScalar() = *reinterpret_cast<double*>(&raw_value); break; } case 32: { static_assert(sizeof(float) == sizeof(uint32_t), ""); uint32_t raw_value = reg_ctx->ReadRegisterAsUnsigned(f0_info, 0) & UINT32_MAX; value.GetScalar() = *reinterpret_cast<float*>(&raw_value); break; } } } else { // not handled yet return return_valobj_sp; } } else { // not handled yet return return_valobj_sp; } // If we get here, we have a valid Value, so make our ValueObject out of it: return_valobj_sp = ValueObjectConstResult::Create(thread.GetStackFrameAtIndex(0).get(), value, ConstString("")); return return_valobj_sp; }
ValueObjectSP ABIMacOSX_i386::GetReturnValueObjectImpl (Thread &thread, CompilerType &compiler_type) const { Value value; ValueObjectSP return_valobj_sp; if (!compiler_type) return return_valobj_sp; //value.SetContext (Value::eContextTypeClangType, compiler_type.GetOpaqueQualType()); value.SetCompilerType (compiler_type); RegisterContext *reg_ctx = thread.GetRegisterContext().get(); if (!reg_ctx) return return_valobj_sp; bool is_signed; if (compiler_type.IsIntegerType (is_signed)) { size_t bit_width = compiler_type.GetBitSize(&thread); unsigned eax_id = reg_ctx->GetRegisterInfoByName("eax", 0)->kinds[eRegisterKindLLDB]; unsigned edx_id = reg_ctx->GetRegisterInfoByName("edx", 0)->kinds[eRegisterKindLLDB]; switch (bit_width) { default: case 128: // Scalar can't hold 128-bit literals, so we don't handle this return return_valobj_sp; case 64: uint64_t raw_value; raw_value = thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffffffff; raw_value |= (thread.GetRegisterContext()->ReadRegisterAsUnsigned(edx_id, 0) & 0xffffffff) << 32; if (is_signed) value.GetScalar() = (int64_t)raw_value; else value.GetScalar() = (uint64_t)raw_value; break; case 32: if (is_signed) value.GetScalar() = (int32_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffffffff); else value.GetScalar() = (uint32_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffffffff); break; case 16: if (is_signed) value.GetScalar() = (int16_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffff); else value.GetScalar() = (uint16_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffff); break; case 8: if (is_signed) value.GetScalar() = (int8_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xff); else value.GetScalar() = (uint8_t)(thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xff); break; } } else if (compiler_type.IsPointerType ()) { unsigned eax_id = reg_ctx->GetRegisterInfoByName("eax", 0)->kinds[eRegisterKindLLDB]; uint32_t ptr = thread.GetRegisterContext()->ReadRegisterAsUnsigned(eax_id, 0) & 0xffffffff; value.GetScalar() = ptr; } else { // not handled yet return return_valobj_sp; } // If we get here, we have a valid Value, so make our ValueObject out of it: return_valobj_sp = ValueObjectConstResult::Create(thread.GetStackFrameAtIndex(0).get(), value, ConstString("")); return return_valobj_sp; }